The state-of-the-art FiX digital signal processor (DSP) is engineered to deliver world-class sound from factory audio systems, without replacing the OEM source unit. FiX 82 and FiX 86 automatically correct time-delayed factory outputs prior to signal summing and EQ correction. World-class sound from your factory radioUser-adjustable 10-band graphic equalizersFix and sum OEM signal30-Second, single-button calibration2 Or 6 RCA outputs